381738044 has 24 divisors (see below), whose sum is σ = 720358800. Its totient is φ = 176411520.

The previous prime is 381738037. The next prime is 381738059. The reversal of 381738044 is 440837183.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 381737989 and 381738007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58139 + ... + 64370.

It is an arithmetic number, because the mean of its divisors is an integer number (30014950).

Almost surely, 2^381738044 is an apocalyptic number.

It is an amenable number.

381738044 is a deficient number, since it is larger than the sum of its proper divisors (338620756).

381738044 is a wasteful number, since it uses less digits than its factorization.

381738044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122573 (or 122571 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 381738044 is about 19538.1177189616. The cubic root of 381738044 is about 725.4182566376.

The spelling of 381738044 in words is "three hundred eighty-one million, seven hundred thirty-eight thousand, forty-four".